Tripod ball head



FIG. 1 is a front perspective view of a tripod ball head in accordance with the present invention;

FIG. 2 is a right side view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a front view thereof,

FIG. 5 is a rear view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown in the drawings depict portions of the tripod ball head that form no part of the claimed design. 

CLAIM The ornamental design for a tripod ball head, as shown and described. 